If you have a P2P DVR or NVR (a unit with a QR code), try rebooting the DVR/NVR. If Zsight still won't work remotely, you may need to contact Zmodo Technical Support.

If you have a non-P2P DVR/NVR (any unit without a square QR code), you will need to Port Forward through your router to allow you to be able to see your cameras when you are not at home. A tutorial can be found here --> http://kb.zmodo.com/NetworkTutorial/landingpage.html